6/(3-x)是整数所以3-x是6的约数所以3-x=1,-1,2,-2,3,-3,6,-6x=-3,0,1,2,4,5,6,9
所以M={-3,0,1,2,4,5,6,9}
超级试练试题库
© 2017-2019 超级试练试题库,All Rights Reserved.